Río Leona (MACN): Early Maastrichtian, Argentina
collected by Caillet-Bois 1918
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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| 1 specimen | ||||||||||
| MACN 5205 (3 middle–posterior caudal centra) | ||||||||||
| Powell 2003 | ||||||||||
| Mannion and Otero 2012 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Santa Cruz | County: | Lago Argentino |
| Coordinates: | 49.9° South, 72.5° West (view map) | ||||
| Paleocoordinates: | 49.8° South, 58.6° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 199 meters | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Early Maastrichtian | ||
| Age range of interval: | 72.2 - 66 m.y. ago |
Stratigraphy
| Formation: | Chorrillo |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | gray,green claystone |
| Includes fossils? | Y |
| Lithology description: "grey and greenish grey clays, with dark and purple bands alternating with generally friable beds." | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | survey of museum collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | MACN | ||
| Collectors: | Caillet-Bois | Collection dates: | 1918 |
| Collection method comments: collected by Teodoro Caillet-Bois, Jan. 10 1918 | |||
Metadata
| Also known as: | Lago Argentino | ||
| Database number: | 51622 | ||
| Authorizer: | M. Carrano, P. Mannion | Enterer: | M. Carrano, P. Mannion |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2005-06-09 06:09:43 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2005-06-09 06:09:43 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 59060. | F. v. Huene. 1929. Los sauriquios y ornitisquios del Cretáceo argentino. Anales del Museo de La Plata, serie 2 3:1-196 [M. Carrano/M. Carrano] |
Secondary references:
| 13929 | ETE | J. F. Bonaparte and Z. B. Gasparini. 1979. Los sauropodos de los grupos Neuquén y Chubut, y sus relaciones cronologicas [The sauropods of the Neuquén and Chubut Groups, and their chronological relationships]. Actas del VII Congreso Geológico Argentino, Neuquén 2:393-406 [M. Carrano/M. Carrano/M. Carrano] |
| 41410 | P. D. Mannion and A. Otero. 2012. A reappraisal of the Late Cretaceous Argentinean sauropod dinosaur Argyrosaurus superbus, with a description of a new titanosaur genus. Journal of Vertebrate Paleontology 32(3):614-638 [P. Mannion/P. Mannion/F. Aspromonte] | |
| 13712 | ETE | J. E. Powell. 2003. Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum Launceston 111:1-173 [M. Carrano/M. Carrano/M. Carrano] |